Kai is a pioneer in security culture awareness, showing CISOs how to drive meaningful changes and move their organizations forward.

—Mirko Zorz, Editor in Chief, Help Net Security

Kai has been pioneering the concepts around security culture for more than a decade, and I've known him for that time as he's built, and sold up, his CLTRe concept. His knowledge on benchmarking a security culture is second to none.

—Dan Raywood, Cybersecurity journalist (former)

I have seen Kai Roer demonstrate his passion and sincere dedication to improving the security culture of organizations for many years. Kai providing guidance for executives to understand their role and responsibility for creating a secure business ecosystem, through using The Security Culture Playbook, is a brilliant idea!

—Rebecca Herold, CEO of The Privacy Professor consultancy, and Privacy & Security Brainiacs SaaS services

I am enthused to learn that Kai Roer has written a new book about security culture.

Kai Roer has taken his many years of cyber experience and combined those with a vested interest in cyber security. By using Kai's Security Culture Framework, I got a tool to address the human and cultural factors in our organization to improve the security maturity.

With clear, everyday examples and analogies to reveal social and cultural triggers that drive human behaviour he guided me through my work. I immediately saw the experience, knowledge, and interpersonal skills that he had for working with people. I most admire Kai for his humor, his determination to reach whatever goals he has put up, and his devotion to throw light on the less technical part of information security.

—Anne-Marie Eklund Löwinder, Founder of Amelsec AB, inducted into the Internet Hall of Fame, Member of the Royal Swedish Academy of Engineering Science

There is no one better placed to present expertise related to security culture than Kai. Further, developing a security culture within a given organization is the first line of defence, which makes this book essential reading.

—Raj Samani, McAfee Fellow, Chief Scientist

Kai Is the world leader on security culture helping organizations understand what culture they currently have, what culture they would like to have, and more importantly how to get there.

—Quentyn Taylor, Senior Director – Product, Information Security and Global Incident Response Canon Europe Middle East and Africa

For over a decade, Kai Roer has advised and guided security executives on leading teams and developing culture. His pragmatic approach, informed by psychology and backed by metrics, moves beyond the fluffy platitudes so often found in leadership books. If you are looking for where to begin or wondering what good looks like, Kai Roer's expertise lights the path.

—J. Wolfgang Goerlich, CISO

I was quite happy living with the knowledge that I had invented the phrase “Security Culture.” Then I met Kai. He had been working on the concept for a couple of years already and went on to become the master of the subject. I am proud to have been on some of that journey with him and have followed and implemented his work at some of the most forward-thinking organizations on the planet.

—Shan Lee, CISO, Wise PLC, ex-Just Eat

Kai is a consummate professional cyber security risk adjudicator and educator; I have known Kai and worked with him for several years, and he is someone I implicitly trust in all settings.

—Bill Hagestad, Author of 21^st Century Chinese Cyberwarfare and several other books on China's use of computer systems as national strategic weapons. He advises NATO, the US Marine Corps and interfaces with the Chinese People's Liberation Army (PLA).

There is no such thing as a comprehensive cybersecurity posture without a security culture program. Carpenter and Roer provide executives with all the tools they need to help secure the frontline of defense ― the human. With ransomware and novel social engineering techniques on the rise, there has never been a timelier moment for this book ― it simply is the must-read cyber book of the year!

—Dr. Lydia Kostopoulos, SVP Emerging Tech Insights

Kai Roer is a person who has been at the forefront of Security Awareness for many years and as such is leading by example. From the early days of his Awareness model to his recent book successes, Kai has proven time and again through his experience in the field implementing his knowledge that he is a true leader in this field.

—Stuart Coulson, Director, HiddenText Ltd